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  • LTC3857EUH#PBF

LTC3857EUH#PBF

32 Terminals 4V~38V 32-Pin LTC3857 DC to DC converter ICSWITCHING CONTROLLER 2 Outputs 105kHz~835kHz 350kHz~535kHz Transistor Driver


  • Manufacturer: Linear Technology/Analog Devices
  • Origchip NO: 471-LTC3857EUH#PBF
  • Package: 32-WFQFN Exposed Pad
  • Datasheet: PDF
  • Stock: 948
  • Description: 32 Terminals 4V~38V 32-Pin LTC3857 DC to DC converter ICSWITCHING CONTROLLER 2 Outputs 105kHz~835kHz 350kHz~535kHz Transistor Driver (Kg)

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Details

Tags

Parameters
Factory Lead Time 8 Weeks
Lifecycle Status PRODUCTION (Last Updated: 3 weeks ago)
Mounting Type Surface Mount
Package / Case 32-WFQFN Exposed Pad
Surface Mount YES
Number of Pins 32
Operating Temperature -40°C~125°C TJ
Packaging Tube
Published 2012
Series PolyPhase®
JESD-609 Code e3
Part Status Active
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 32
ECCN Code EAR99
Terminal Finish Matte Tin (Sn)
Subcategory Switching Regulator or Controllers
Technology CMOS
Terminal Position QUAD
Peak Reflow Temperature (Cel) 260
Terminal Pitch 0.5mm
Time@Peak Reflow Temperature-Max (s) 30
Base Part Number LTC3857
Function Step-Down
Number of Outputs 2
Output Voltage 24V
Output Type Transistor Driver
Input Voltage-Nom 12V
Number of Channels 1
Analog IC - Other Type SWITCHING CONTROLLER
Output Configuration Positive
Voltage - Supply (Vcc/Vdd) 4V~38V
Control Features Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking
Input Voltage (Min) 4V
Topology Buck
Control Mode CURRENT-MODE
Frequency - Switching 105kHz~835kHz 350kHz~535kHz
Input Voltage (Max) 38V
Control Technique PULSE WIDTH MODULATION
Synchronous Rectifier Yes
Switcher Configuration PHASE-SHIFT
Max Frequency 850kHz
Duty Cycle (Max) 99.4%
Clock Sync No
Height Seated (Max) 0.8mm
Length 5mm
Width 5mm
REACH SVHC No SVHC
RoHS Status ROHS3 Compliant

LTC3857EUH#PBF Overview


With a 32-WFQFN Exposed Pad package, the switching controller is suitable for a wide range of applications. For 2 outputs, the dc motor controller is appropriate. PMIC packaging is solid with a Tube enclosure. It is capable of dealing with Transistor Driver dc switching's output (s). dc switching'sA 4V~38V voltage is supplied to the dc control and used for operating it. Worked in a -40°C~125°C TJ dc switcher before. With this switching controller, you can switch at 105kHz~835kHz 350kHz~535kHz. As it has a Surface Mount value, it can be used for general dc dc regulator. Featured in the dcdc regulator is Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking which allows efficient switching control. Switch converters are connected to ICs with SWITCHING CONTROLLER analog outputs. A switching converters's terminal (s) sits at the QUAD position. A variety of terminations with 32 of dc switching. This dc dc converter ic uses a variety of control techniques, including PULSE WIDTH MODULATION. DC switcher's input voltageis set to 12V. You can find other relevant dc to dc converter ics by searching "LTC3857". Total pins of switching converter are 32. Specifically, switching converter falls under the Switching Regulator or Controllers category. This dc dc voltage regulator should be powered by a voltage of 4V. Statistically, DC regulator outputs 24V volts. It should be noted that the dc to dc regulator only accepts 38V voltage as input voltage. DC regulators have a maximum frequency of 850kHz. It belongs to the PolyPhase? series of dc to dc voltage regulator. Communication on 1 channels is high-quality.

LTC3857EUH#PBF Features


Transistor Driver Outputs
Switching Frequency: 105kHz~835kHz 350kHz~535kHz
Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking
PULSE WIDTH MODULATION

LTC3857EUH#PBF Applications


There are a lot of Linear Technology/Analog Devices LTC3857EUH#PBF DC to DC converter applications.

  • Special machining machine tools
  • Imported equipment
  • Textile machinery
  • Smoke prevention equipment
  • Balance equipment
  • Surface processing equipment
  • Machining centers
  • seismic instrument power circuits
  • Low output voltage switching power supply circuits
  • Die casting equipment